GSM Based Home Automation

1
2#include<SoftwareSerial.h> 
3SoftwareSerial mySerial(10,11);  //  (Rx,Tx  > Tx,Rx) 
4
5char incomingByte; 
6String inputString;
7int relay1  = 2; // Output for Relay Control
8int relay2 = 3; // Output for Relay Control
9
10void  setup() 
11{
12      pinMode(relay1, OUTPUT);
13        pinMode(relay2, OUTPUT);
14      digitalWrite(relay1, LOW); // Initial state of the relay
15       digitalWrite(relay2,  LOW); // Initial state of the relay
16      Serial.begin(9600);
17      mySerial.begin(9600);  
18
19     while(!mySerial.available()){
20        mySerial.println("AT");
21        delay(1000); 
22        Serial.println("Connecting...");
23        }
24      Serial.println("Connected!");  
25      mySerial.println("AT+CMGF=1");  //Set SMS to Text Mode 
26      delay(1000);  
27      mySerial.println("AT+CNMI=1,2,0,0,0");  //Procedure to handle newly arrived messages(command name in text: new message  indications to TE) 
28      delay(1000);
29      mySerial.println("AT+CMGL=\\"REC  UNREAD\\""); // Read Unread Messages
30     }
31
32void loop()
33{  
34  if(mySerial.available()){
35      delay(100);
36
37      // Serial Buffer
38      while(mySerial.available()){
39        incomingByte = mySerial.read();
40        inputString += incomingByte;  
41        }
42
43        delay(10);      
44
45        Serial.println(inputString);
46        inputString.toUpperCase(); // Uppercase the Received Message
47
48        //turn  RELAY ON or OFF
49        if (inputString.indexOf("LIGHT ON") > -1){
50          digitalWrite(relay1,  HIGH);
51          }
52         if (inputString.indexOf("LIGHT OFF") > -1){
53          digitalWrite(relay1, LOW);
54          }   
55           if (inputString.indexOf("FAN  ON") > -1){
56          digitalWrite(relay2, HIGH);
57          }
58         if  (inputString.indexOf("FAN OFF") > -1){
59          digitalWrite(relay2, LOW);
60          }     
61            if (inputString.indexOf("ALL ON") > -1){
62          digitalWrite(relay1,  HIGH);
63           digitalWrite(relay2, HIGH);
64          }
65         if (inputString.indexOf("ALL  OFF") > -1){
66          digitalWrite(relay1, LOW);
67          digitalWrite(relay2,  LOW);
68          }    
69
70        delay(50);
71
72        //Delete Messages  & Save Memory
73        if (inputString.indexOf("OK") == -1){
74        mySerial.println("AT+CMGDA=\\"DEL  ALL\\"");
75
76        delay(1000);}
77
78        inputString = "";
79  }
80}
81

1
2#include<SoftwareSerial.h> 
3SoftwareSerial mySerial(10,11);  //
4  (Rx,Tx  > Tx,Rx) 
5
6char incomingByte; 
7String inputString;
8int relay1
9  = 2; // Output for Relay Control
10int relay2 = 3; // Output for Relay Control
11
12void
13  setup() 
14{
15      pinMode(relay1, OUTPUT);
16        pinMode(relay2, OUTPUT);
17
18      digitalWrite(relay1, LOW); // Initial state of the relay
19       digitalWrite(relay2,
20  LOW); // Initial state of the relay
21      Serial.begin(9600);
22      mySerial.begin(9600);
23  
24
25     while(!mySerial.available()){
26        mySerial.println("AT");
27
28        delay(1000); 
29        Serial.println("Connecting...");
30        }
31
32      Serial.println("Connected!");  
33      mySerial.println("AT+CMGF=1");
34  //Set SMS to Text Mode 
35      delay(1000);  
36      mySerial.println("AT+CNMI=1,2,0,0,0");
37  //Procedure to handle newly arrived messages(command name in text: new message
38  indications to TE) 
39      delay(1000);
40      mySerial.println("AT+CMGL=\\"REC
41  UNREAD\\""); // Read Unread Messages
42     }
43
44void loop()
45{  
46  if(mySerial.available()){
47
48      delay(100);
49
50      // Serial Buffer
51      while(mySerial.available()){
52
53        incomingByte = mySerial.read();
54        inputString += incomingByte;
55  
56        }
57
58        delay(10);      
59
60        Serial.println(inputString);
61
62        inputString.toUpperCase(); // Uppercase the Received Message
63
64        //turn
65  RELAY ON or OFF
66        if (inputString.indexOf("LIGHT ON") > -1){
67          digitalWrite(relay1,
68  HIGH);
69          }
70         if (inputString.indexOf("LIGHT OFF") > -1){
71
72          digitalWrite(relay1, LOW);
73          }   
74           if (inputString.indexOf("FAN
75  ON") > -1){
76          digitalWrite(relay2, HIGH);
77          }
78         if
79  (inputString.indexOf("FAN OFF") > -1){
80          digitalWrite(relay2, LOW);
81
82          }     
83            if (inputString.indexOf("ALL ON") > -1){
84          digitalWrite(relay1,
85  HIGH);
86           digitalWrite(relay2, HIGH);
87          }
88         if (inputString.indexOf("ALL
89  OFF") > -1){
90          digitalWrite(relay1, LOW);
91          digitalWrite(relay2,
92  LOW);
93          }    
94
95        delay(50);
96
97        //Delete Messages
98  & Save Memory
99        if (inputString.indexOf("OK") == -1){
100        mySerial.println("AT+CMGDA=\\"DEL
101  ALL\\"");
102
103        delay(1000);}
104
105        inputString = "";
106
107  }
108}
109